28004236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 56730240

約数和(自身を除く): 28726004

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 79, 158, 221, 316, 401, 442, 802, 884, 1027, 1343, 1604, 2054, 2686, 4108, 5213, 5372, 6817, 10426, 13634, 17459, 20852, 27268, 31679, 34918, 63358, 69836, 88621, 126716, 177242, 354484, 411827, 538543, 823654, 1077086, 1647308, 2154172, 7001059, 14002118, 28004236]

約数ペア:

[(1, 28004236), (2, 14002118), (4, 7001059), (13, 2154172), (17, 1647308), (26, 1077086), (34, 823654), (52, 538543), (68, 411827), (79, 354484), (158, 177242), (221, 126716), (316, 88621), (401, 69836), (442, 63358), (802, 34918), (884, 31679), (1027, 27268), (1343, 20852), (1604, 17459), (2054, 13634), (2686, 10426), (4108, 6817), (5213, 5372)]